Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"phan thi hoa snippets" » "pham thi hoa snippets", "tran thi hoa snippets", "phan tu hoa snippets", "phan thi hoan snippets", "phan thi ha snippets", "phan thi hong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan thi hoa snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan thi hoa snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan thi hoa snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan thi hoa snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.